CN103104482A - Pump rod structure used for plunger pump - Google Patents
Pump rod structure used for plunger pump Download PDFInfo
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- CN103104482A CN103104482A CN2013100345483A CN201310034548A CN103104482A CN 103104482 A CN103104482 A CN 103104482A CN 2013100345483 A CN2013100345483 A CN 2013100345483A CN 201310034548 A CN201310034548 A CN 201310034548A CN 103104482 A CN103104482 A CN 103104482A
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- pump
- oil
- rod
- plunger
- valve seat
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- Reciprocating Pumps (AREA)
Abstract
The invention belongs to the technical field of oil injecting machines, in particular to a pump rod structure used for a plunger pump. A connection pipe is sequentially connected with a hollow pump body, a check valve seat and an oil inlet sleeve pipe from top to bottom in a sealing mode to form a pump rod outer shell, a connection rod in the pump rod outer shell is sequentially connected with a plunger rod, a one-way valve seat and a lifting rod from top to bottom to form a pump oil moving part, a check valve element is arranged on the check valve seat, an annular concave groove is formed in the inner cylindrical surface of the check valve element which is made of non-metal materials and is a hollow annular body, a sealing ring is arranged in the concave groove, a boss is arranged on the lower end surface of the annular body, an oil-passing groove is arranged at the upper portion of the lateral wall of the annular body, a spherical type concave groove is arranged at the inner side of the annular body, and the lower wall of the oil-passing groove is contracted gradually from bottom to top to form an inclined lower wall. The pump rod structure used for the plunger pump has the advantages that the movement of a check valve along with the lifting rod is flexible, the oil inlet pressure of the oil inlet sleeve pipe is large, and the oil inlet resistance is small. The pump rod structure used for the plunger pump is suitable for the oil injecting machines in the same type.
Description
Technical field
The invention belongs to the Lubricators technical field, refer in particular to a kind of pump rod structure of the plunger pump for Lubricators.
Background technique
The pump rod of plunger pump is an important device of Lubricators.It relies on parts to-and-fro motion in cylinder body such as plunger rod and material extraction rod, makes the volume of seal operation cavity volume change to realize oil suction, force feed.The advantages such as plunger pump has that rated pressure is high, compact structure, efficient is high and Flow-rate adjustment is convenient are widely used in the occasion that high pressure, large flow and flow need to be regulated, in hydraulic press, engineering machinery and boats and ships.
The pump rod structure of this traditional plunger pump, the defective of existence is: the efficient of plunger pump oil suction during use (1), force feed is not too high; (2) put forward the sealability of material part good not, and material extraction rod occurs sometimes and can't mention safety check, cause the oil suction of plunger pump, force feed blocking can occur, cause the construction Halfway Stopping; (3) resistance of oil-feed sleeve pipe lower end surface is large, and the input pressure of side is little.
Summary of the invention
The purpose of this invention is to provide a kind of safety check and follow the pump rod structure that is used for plunger pump that motion is flexible, the input pressure oil-feed sleeve pipe is large, resistance is little of material extraction rod.
The object of the present invention is achieved like this:
a kind of pump rod structure for plunger pump, connecting tube from top to bottom successively with the pump housing of hollow, Boilor check valve seat and oil-feed bobbin seal are connected to form the pump rod shell, connecting rod in the pump rod shell from top to bottom successively with plunger rod, one-way valve seat and material extraction rod are connected to form pump oil moving part, the lower end that is arranged on the material extraction rod in the oil-feed sleeve pipe is fixed with and coordinates the flitch of carrying of carrying material with the oil-feed internal surface of sleeve pipe, plunger rod coordinates with the top slipper seal of pump housing inwall, the top of plunger rod is provided with oil outlet one-way valve, the bottom coordinates formation supercharging one-way valve with described one-way valve seat, be provided with non-return valve core on Boilor check valve seat, the concrete structure of described non-return valve core is: the inner cylindrical surface of the annular solid of the hollow made from nonmetallic material is provided with the groove of annular, be provided with seal ring in groove, the inboard of annular solid lower end surface is provided with downward boss, the top of annular solid sidewall is provided with the logical oil groove that connects sidewall more than three, the inboard is provided with the spherical groove, the lower wall of logical oil groove from the bottom to top progressively undergauge form the lower wall of inclination, the oil-feed cannula cavity, Boilor check valve seat, material extraction rod outer wall space, cavity between plunger rod inner chamber and plunger rod and connecting tube forms oil supply gallery.
Above-mentioned logical oil groove has four, is distributed in the top of annular solid.
The bottom necking down of above-mentioned oil-feed sleeve pipe external cylindrical surface forms the large-diameter portion on top and the minor diameter part of bottom, circumferentially is evenly equipped with the bar hole that axially arranges more than six on the sidewall of minor diameter part, and the underside corner of large-diameter portion and minor diameter part is provided with chamfering.
The present invention's outstanding and useful technique effect compared to existing technology is:
1, the present invention arranges groove and seal ring in the hollow cavity of the Boilor check valve seat that uses nonmetallic material to make, strengthened the sealability of safety check on material extraction rod, prevented between safety check and material extraction rod because sealability is bad, plunger pump safety check when logical oil is skidded on material extraction rod, when material extraction rod rises, safety check can not be followed its rising, cause safety check not opened, the problem that causes plunger pump oil suction, force feed to have some setbacks, the Boilor check valve seat that uses simultaneously nonmetallic material to make has reduced cost of production.
2, the present invention arranges the spherical groove at four logical oil grooves and middle part on the top of safety check, makes the oil extraction efficient of safety check high.
3, the present invention arranges the large-diameter portion on top and the minor diameter part of bottom on the oil-feed sleeve pipe, underside corner at large-diameter portion and minor diameter part is provided with chamfering, reduced the to-and-fro motion resistance of oil-feed sleeve pipe, the step of large-diameter portion and minor diameter part downside has increased the input pressure of bar hole on the minor diameter part, is conducive to oil-feed.
4, the present invention is applicable to Lubricators of the same type and does the pump rod use.
Description of drawings
Fig. 1 is sectional view of the present invention.
Fig. 2 is the schematic perspective view of non-return valve core of the present invention.
Fig. 3 is the sectional view of non-return valve core of the present invention.
Embodiment
The invention will be further described with specific embodiment below in conjunction with accompanying drawing, referring to Fig. 1-3:
a kind of pump rod structure for plunger pump, connecting tube 1 from top to bottom successively with the pump housing 6 of hollow, Boilor check valve seat 72 and oil-feed sleeve pipe 11 are tightly connected and form the pump rod shell, connecting rod 2 in the pump rod shell from top to bottom successively with plunger rod 4, one-way valve seat 53 and material extraction rod 8 are connected to form pump oil moving part, the lower end that is arranged on the material extraction rod 8 in oil-feed sleeve pipe 11 be fixed with coordinate with oil-feed sleeve pipe 11 inwalls carry material carry flitch 10, plunger rod 4 coordinates with the top slipper seal of the pump housing 6 inwalls, the top of plunger rod 4 is provided with oil outlet one-way valve 3, the bottom coordinates formation supercharging one-way valve 5 with described one-way valve seat 53, be provided with non-return valve core 71 on Boilor check valve seat 72, the concrete structure of described non-return valve core 71 is: the inner cylindrical surface of the annular solid 711 of the hollow made from nonmetallic material is provided with the groove 713 of annular, be provided with seal ring 714 in groove, the inboard of annular solid 711 lower end surfaces is provided with downward boss 712, the top of annular solid sidewall is provided with the logical oil groove 715 of (the present embodiment adopts four) perforation sidewall more than three, the inboard is provided with spherical groove 716, the lower wall of logical oil groove 715 from the bottom to top progressively undergauge form the lower wall of inclination, oil-feed sleeve pipe 11 inner chambers, Boilor check valve seat 72, the outer wall space of material extraction rod 8, cavity between plunger rod 4 inner chambers and plunger rod 4 and connecting tube 1 forms oil supply gallery.
Above-mentioned logical oil groove 715 has four, is distributed in the top of annular solid 711.
The bottom necking down of above-mentioned oil-feed sleeve pipe 11 external cylindrical surfaces forms the large-diameter portion 111 on top and the minor diameter part 114 of bottom, circumferentially be evenly equipped with the bar hole 113 that axially arranges more than six on the sidewall of minor diameter part 114, the underside corner of large-diameter portion 111 and minor diameter part 114 is provided with chamfering 112,115.
Described oil outlet one-way valve 3 is provided with ball-type spool 33 for to be provided with valve seat 34 and oil outlet 31 on the top of plunger rod 4 on valve seat 34, underpart, the other end that an end of holddown spring 32 holds out against at connecting rod 2 hold out against on ball-type spool 33.
Described supercharging one-way valve 5 is: the bottom of plunger rod 4 is connected with one-way valve seat 53, the downside of one-way valve seat 53 is horizontally arranged with and is provided with the oil through that is communicated with oil inlet hole 52 on oil inlet hole 52, axis, oil through is provided with ball-type spool 55, one end of holddown spring 54 hold out against on spring seat 51, the other end holds out against on ball-type spool 55, spring seat 51 is sleeved on the underpart of plunger rod 4.
Certainly, the top of connecting tube 1 is provided with one-way cock, the outlet of one-way cock is communicated with the logical oil-piping layout of external oil gun, and the oil in the oil drum of Lubricators passes through safety check 7, supercharging one-way valve 5, oil outlet one-way valve 3, reaches the one-way cock multi-stage booster, makes oil gun have enough oiling pressure.
Above-described embodiment is only preferred embodiment of the present invention, is not to limit according to this protection scope of the present invention, therefore: all equivalences of doing according to structure of the present invention, shape, principle change, within all should being covered by protection scope of the present invention.
Claims (3)
1. pump rod structure that is used for plunger pump, connecting tube from top to bottom successively with the pump housing of hollow, Boilor check valve seat and oil-feed bobbin seal are connected to form the pump rod shell, it is characterized in that: the connecting rod in the pump rod shell from top to bottom successively with plunger rod, one-way valve seat and material extraction rod are connected to form pump oil moving part, the lower end that is arranged on the material extraction rod in the oil-feed sleeve pipe is fixed with and coordinates the flitch of carrying of carrying material with the oil-feed internal surface of sleeve pipe, plunger rod coordinates with the top slipper seal of pump housing inwall, the top of plunger rod is provided with oil outlet one-way valve, the bottom coordinates formation supercharging one-way valve with described one-way valve seat, be provided with non-return valve core on Boilor check valve seat, the concrete structure of described non-return valve core is: the inner cylindrical surface of the annular solid of the hollow made from nonmetallic material is provided with the groove of annular, be provided with seal ring in groove, the inboard of annular solid lower end surface is provided with downward boss, the top of annular solid sidewall is provided with the logical oil groove that connects sidewall more than three, the inboard is provided with the spherical groove, the lower wall of logical oil groove from the bottom to top progressively undergauge form the lower wall of inclination, the oil-feed cannula cavity, Boilor check valve seat, material extraction rod outer wall space, cavity between plunger rod inner chamber and plunger rod and connecting tube forms oil supply gallery.
2. a kind of pump rod structure for plunger pump according to claim 1, it is characterized in that: described logical oil groove has four, is distributed in the top of annular solid.
3. a kind of pump rod structure for plunger pump according to claim 1 and 2, it is characterized in that: the bottom necking down of described oil-feed sleeve pipe external cylindrical surface forms the large-diameter portion on top and the minor diameter part of bottom, circumferentially be evenly equipped with the bar hole that axially arranges more than six on the sidewall of minor diameter part, the underside corner of large-diameter portion and minor diameter part is provided with chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310034548.3A CN103104482B (en) | 2013-01-28 | 2013-01-28 | A kind of pump rod structure for plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310034548.3A CN103104482B (en) | 2013-01-28 | 2013-01-28 | A kind of pump rod structure for plunger pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103104482A true CN103104482A (en) | 2013-05-15 |
| CN103104482B CN103104482B (en) | 2015-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310034548.3A Active CN103104482B (en) | 2013-01-28 | 2013-01-28 | A kind of pump rod structure for plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103104482B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759116A (en) * | 2013-12-02 | 2014-04-30 | 浙江瑞丰五福气动工具有限公司 | High-pressure oiler |
| CN104500954A (en) * | 2014-12-22 | 2015-04-08 | 浙江瑞丰五福气动工具有限公司 | Pneumatic high-pressure grease filling machine |
| CN107991229A (en) * | 2017-11-24 | 2018-05-04 | 冷兴友 | A kind of pipe fitting welding detection vibrations equipment |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1207621A (en) * | 1966-09-07 | 1970-10-07 | Accessairsa | Induction motor with spherical air gap |
| DE3025699A1 (en) * | 1979-12-25 | 1981-07-02 | Kabushiki Kaisha Maruyama Seisakusho, Tokyo | VALVE ARRANGEMENT FOR A PISTON PUMP |
| US4673338A (en) * | 1984-12-31 | 1987-06-16 | Jones William A | Travelling barrel down hole pump having a gas relief probe |
| US4867242A (en) * | 1985-05-31 | 1989-09-19 | Amerada Minerals Corporation Of Canada, Ltd. | Method and apparatus for breaking gas lock in oil well pumps |
| US4878815A (en) * | 1988-05-18 | 1989-11-07 | Stachowiak J Edward | High pressure reciprocating pump apparatus |
| WO2000079132A2 (en) * | 1999-06-18 | 2000-12-28 | Rotech Holdings Limited | Downhole roller vane pump |
| CN2521423Y (en) * | 2001-12-12 | 2002-11-20 | 赵国璋 | Double stroke oil-well pump |
| CN2632341Y (en) * | 2003-08-09 | 2004-08-11 | 张晓义 | Ram rotary hollow sandproof oil-well pumps |
| CN2677607Y (en) * | 2003-12-19 | 2005-02-09 | 胡秀忠 | Oil production device with energy-saving submersible electric pump driven by cylindrical rare earth permanent-magnet linear electric machine |
| CN1699802A (en) * | 2004-05-17 | 2005-11-23 | 株式会社不二工机 | Expansion valve |
| CN200982289Y (en) * | 2006-11-29 | 2007-11-28 | 王学锋 | Linear motor submersible reciprocal oil extraction pump |
| CN201953624U (en) * | 2010-02-08 | 2011-08-31 | 孙德盛 | Through-pump rod type oil-well pump |
| CN203098260U (en) * | 2013-01-28 | 2013-07-31 | 浙江瑞丰五福气动工具有限公司 | Pump rod structure used for plunger pump |
-
2013
- 2013-01-28 CN CN201310034548.3A patent/CN103104482B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1207621A (en) * | 1966-09-07 | 1970-10-07 | Accessairsa | Induction motor with spherical air gap |
| DE3025699A1 (en) * | 1979-12-25 | 1981-07-02 | Kabushiki Kaisha Maruyama Seisakusho, Tokyo | VALVE ARRANGEMENT FOR A PISTON PUMP |
| US4673338A (en) * | 1984-12-31 | 1987-06-16 | Jones William A | Travelling barrel down hole pump having a gas relief probe |
| US4867242A (en) * | 1985-05-31 | 1989-09-19 | Amerada Minerals Corporation Of Canada, Ltd. | Method and apparatus for breaking gas lock in oil well pumps |
| US4878815A (en) * | 1988-05-18 | 1989-11-07 | Stachowiak J Edward | High pressure reciprocating pump apparatus |
| WO2000079132A2 (en) * | 1999-06-18 | 2000-12-28 | Rotech Holdings Limited | Downhole roller vane pump |
| CN2521423Y (en) * | 2001-12-12 | 2002-11-20 | 赵国璋 | Double stroke oil-well pump |
| CN2632341Y (en) * | 2003-08-09 | 2004-08-11 | 张晓义 | Ram rotary hollow sandproof oil-well pumps |
| CN2677607Y (en) * | 2003-12-19 | 2005-02-09 | 胡秀忠 | Oil production device with energy-saving submersible electric pump driven by cylindrical rare earth permanent-magnet linear electric machine |
| CN1699802A (en) * | 2004-05-17 | 2005-11-23 | 株式会社不二工机 | Expansion valve |
| CN200982289Y (en) * | 2006-11-29 | 2007-11-28 | 王学锋 | Linear motor submersible reciprocal oil extraction pump |
| CN201953624U (en) * | 2010-02-08 | 2011-08-31 | 孙德盛 | Through-pump rod type oil-well pump |
| CN203098260U (en) * | 2013-01-28 | 2013-07-31 | 浙江瑞丰五福气动工具有限公司 | Pump rod structure used for plunger pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759116A (en) * | 2013-12-02 | 2014-04-30 | 浙江瑞丰五福气动工具有限公司 | High-pressure oiler |
| CN104500954A (en) * | 2014-12-22 | 2015-04-08 | 浙江瑞丰五福气动工具有限公司 | Pneumatic high-pressure grease filling machine |
| CN107991229A (en) * | 2017-11-24 | 2018-05-04 | 冷兴友 | A kind of pipe fitting welding detection vibrations equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103104482B (en) | 2015-07-29 |
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